Calendar



A. ABORN.

CALENDAR.

APPLICATION FILED NOV- 20.1918.

Patented Nov. 11, 1919.

2 SHEETS-SHEET 1.

jiwerzi'ar A.ABORN.

' CALENDAR.

' I918- 1,321,498; Patented Nov. 11, 1919.

' 2 SHEETS SHEET 2- in STATES PATENT omen.

ALBERT ABORN, OF DES MOINES, IOWA, ASSIGNOR 0F ONE-THIRD TO FRANK L. MINER AND ONE-THIRD T0 ORIN G. CHESLEY, BOTH OFIDES MOINES, IOWA.

CALENDAR.

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application filed November 20, 1918. Serial No. 263,354.

To all whom it may concern.

Be it known that I, ALBERT AnonN, a citi- Zen of the United States, residing at Des Moines, in the county of Polk and State of Iowa, have invented certain new and useful Improvements in Calendars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention refers generally to an indicating and recording device by means of which adjustable and exchangeable pieces of informatory matter can be easily adjusted in the proper position and when so adjusted may be readily seen and read, and

it is one of the objects of my invention to provide means of construction whereby devices of this kind may be cheaply and easily nmnufactured from material obtainable at a low cost and from parts which can be easily shaped and assembled, and it is a further object of my invention to increase the adaptability of devices of this kind and at the same time to reduce the number of parts necessary to make up a complete structure.

As here shown my invention is particularly applied to the construction of a calendar which when properly set may be used for a very great number of years, but I wish it to be understood that my invention is not restricted thereto but may as well be applied for other indicating and recording purposes where inform atory matter is made up of different pieces of such matter contained upon separate supporting surfaces. As applied to calendars my invention has for one of its objects to construct a kind of perpetual or long-time calendar, and it is a further obj ect of the invention when applied to calendars to construct a, calendar in which not only the dates of the current, but also those of the succeeding week may be easily ascertained, and in which not only the particular day may be easily read but in which the particular days of the week corresponding to each date may be easily determined. Other objects and advantages of my inven tion will appear from the following specification and from the drawings.

In the drawings which represent my invention as being embodied in a longtime calendar by way of example, Figure 1 is a longitudinal section of the preferred form of construction of a calendar of this kind.

Fig. 2 is a top plan View of the device in the assembled condition. Fig. 3 is a detail view of the rotating instrumentalities. Figs. 4, 5 and G are plan views respectively representing the three chief disks of which the device is composed.

16 is a base plate of any suitable material having rotatably secured thereto a pivotal stud 15 rotatable on the pin 15 which is secured against rotation upon the stationary base plate 16. The outer surface of the knob or pivotal stud 15 may be provided with informatory matter, and in the present instance it has a series of fifteen radial sectors containing the names of the months in the year arranged according to a certain system. At the bottom of the knob 15 a circular disk 2 is secured at the edge of which two rows concentric with the knob 15 are arranged which are divided up in the present in.- stance into twenty-eight radial sectors each and of which each row contains the names of the days of the week in consecutive order. The" days in each sector are ten days distant from each other. In the drawings the informatory matter of the disk 1 is indicated at 10. Overlying the disk or wheel 1 another disk or wheel 2 is arranged so as to be rotatable around the knob 15. At the part surrounding said knob 15 the circular disk 2 is provided with a resilient upstanding flange 7 which embraces and engages with the said knob so as to partake in its rotation. The disk 2 may, however, alsobe held-stationary by means hereinafter described so as to allow of the disk 1 rotating independently of the said disk or wheel 2. This latter disk is preferably of larger diameter than the disk 1 and at the part corresponding to the concentric rows 10 of informatory matter of the disk 1, the disk 2 is provided with a concentric recessed part 6 connected by thin webs 6 or in any other suitablemanner to the body part of the, disk, 2. At the inner edge of said recessed part 6 the disk 2 is provided with a number of concentric rows 11 of informatory matter, in the present instance with siX rows containing28 radial sectors each and representing the numbers of the days of the month in consecutive order in eaehrow. The days of the month corresponding to the sameweek day are arranged in radial succession, and immediately surrounding the recessed part 6 are rowsof dates ten days apart in radial succession,

of the underlying disk 2 the said upper and of which the dates of the inner row .tor in accordancewith a certain system. The body part ofthe disk or wheel 2 'covers the blank space of the underlying disk 1 and the two rows 10 of informatory matter of said disk 1 are flanked on each side by the rows ofnumbers onthe part 11 and the ring ll respectively of the disk 2 immediately adj oiningthe recessed part 6.

' The flanged part 7 of the disk 2 immediately adjoining the knob 15 may consist for instance of spring acting teeth as clearly shown in 'Fig 3 of the drawing.

Upon the disk 2 another disk 3 of smaller diameter and preferably of a width corresponding to the blank space of the underlying disk 2 isrotatably arranged in a similarmanner' as the disk 2. At its inner edge surrounding the knob 15 and th flange 7 disk 3 is provided with a resilient flange, preferably consisting of a series of-spring acting teeth 8 which are adapted to engage the teeth 7 'of the underlying disk so as to be ableto rotate disks 1, 2 and 3 by merely turning the knob 15. When the intermedi ate disk 2 is locked against rotation only, the bottom disk 1 is rotated by operating the knob 15, inasmuch as the underlying disk 2 is held stationary the upper disk3 which engages with the flanged part of said disk 7 2 will also be heldstationary. This disk 3 in the presentinstance is all covered with informatory matter 12, preferably in form V of seven rows of 28 sectors each.

' With the said knob 15.

Each concentric row contains the names of the week days'in consecutive order. In radial succession the week days of this part 12 are preferably ten daysap-art in accordance with. the system on which this calendar has been calculated, but itis obvious that different arrangements of the week days in relation to each other may be resorted to, and there may be otherinformatory matter arranged upon the disk 3.

The entire structure is covered at the outsideby a covering plate 4 Which is provided with a circular recess surrounding the knob 15 and the flanged parts 7 and 8 of the underlying disks and which are in engagement The, covering plate 1 is provided with additional recessed parts 5 and 9 through which the'informatory matter of all the underlying disks may be read with the help of th recess 6 of the disk 2.

As here shown the recessed part 5 is preferably sector shaped and allows of reading a corresponding sector of the disk- 3 and of the body part of the disk 2 and the inner half of the corresponding sector of the bottom disk 1'. Another recess preferably diae metrically opposite the recess 5 is shown at '9 in they drawing as being of just suflicient inner row of the bottom disk 1.

tom disk 1, so that the indications in this small window or recess 9 are taken from the outer row of the bottom disk and the date indications in the other recess 5 from the Inasmuch as the arrangement of the several sectors on the bottom disk 1 in the calendar system shown as an instance, is such that the diametrically opposite sectors on said disk 1 contain the same names of the days and in the same order relatively to the knob 15 it is obvious that the diametrically opposite indications 011 the cover plate will refer to the current date and to a date ten days distant therefrom when employed in connection with the calendar system of the construction shown in the drawing.

Other informatory matter 13 surrounding the circular recess of the covering plate 4 refers to the setting of the calendar and to the numbers of the years and may be ar ranged so as to concentrically surround the said recess, while other informatory matter containing the names of the months may be arranged on that portion of the two sides of the sector shaped recess 5 which corresponds to the radial depth of the underlying small disk 3.

When applied to a time or date computing device or a calendar as hereinbefore described the device is set in accordance with a certain key based on a certain system of date calculation by first adjusting the small disk 3 containing the names of the days of the week for a whole year, then turning the knob 15 with the disks 2 and 3 engaging therewith until a certain number of the ring shaped part 11 of circularly slotted disk 2, the numbers 7, 141. or 21 for instance according to the computing system employed in the present instance, appears in the upper window 9 of the covering disk 4:. Then the covering disk 4 and th large circularly slotted disk 2 are locked together so as to keep the disk 2 from rotation and the knob or pivotal stud 15 is turned until the desired month of the months indications on its surface corresponds with one of a series of numbers arranged in a concentric circle between the circular hole at the center of the covering disk 4 and the surrounding series of numbers of years. The computing device or calendar is then set. A key or a set of in- 'structions accompany .the computing d vice to facilitate the setting thereof and the Imding of the particular dates.

It is obvious that my invention is capable of various modifications in accordance with the different systems of date computations employed, and as local conditions of use and of convenience of the operator may direct claim is 1. In a device of: the character described the combination with a base, of a rotatable disk mounted on said base, a} pivotal stud secured to said bottom disk, additional superimposed adjustable disks of different and decreasing diameters rotatably mounted on said pivotal stud, an outei concentric ring around the edge of the base-secured rotatable disk, means to connect said ring to the lowermost additional disk at a concentric distance thereof, resilient spring acting teeth at the inner edges of said additional disks and yieldingly engaging each other and yieldingly engaging said pivotal stud, informatory matter on said ring, informatory matter on the upper disk and informatory matter on the underlying disks around the edges of the overlying disks, and a stationary covering plate engageable with said ring to keep said ring from rotation.

2. In a device of the character described in combination a base, a rotatable circular, bottom disk mounted on said base, a circular pivotal knob secured to said bottom disk, additional superimposed circular disks of different and decreasing diameters rotatably mounted on said pivotal knob, an outer concentric ring around the edge of the bottom disk and means to connect said ring to the lowermost additional disk at a concentric distance therefrom, resilient spring acting teeth at the inner edges of said additional disks and yieldingly engaging each other and yieldingly engaging said pivotal knob, informatory matter on said ring, tWo concentric rows of informatory matter near the edge of the bottom disk and corresponding with the distance between the ring and the disk connected thereto, informatory matter on the upper disk, and informatory matter on the underlying disks around the edges 01 the overlying disks, a stationary covering plate engageable with said ring to keep said ring from rotation, oppositely disposed recessed parts on said covering plate, one of said recessed parts being of sectional shape and disclosing part of the inner row of inforn'iatory matter of the bottom disk and parts of the informatory-matter of the over lying disks, the other recessed part disclosing part of the informatory matter of the outer row of the bottom. disk and part of the informatory matter of said ring.

In testimony whereof I a'l'lix my signature in presence of two Witnesses,

ALBERT ABORN.

Witnesses:

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

